Pith Number

pith:BVMKMNI3

pith:2018:BVMKMNI3ZLROHZTKP6XC6LHRDJ

not attested not anchored not stored refs pending

On the cohomology of meromorphic open-string vertex algebras

Fei Qi

arxiv:1804.07424 v2 · 2018-04-20 · math.QA · math.KT · math.RT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVMKMNI3ZLROHZTKP6XC6LHRDJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:39:27.516869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d58a6351bcae2e3e66a7fae2f2cf11a5e8ae4ca378745abe6362d1ea5dcf090

Aliases

arxiv: 1804.07424 · arxiv_version: 1804.07424v2 · doi: 10.48550/arxiv.1804.07424 · pith_short_12: BVMKMNI3ZLRO · pith_short_16: BVMKMNI3ZLROHZTK · pith_short_8: BVMKMNI3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BVMKMNI3ZLROHZTKP6XC6LHRDJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0d58a6351bcae2e3e66a7fae2f2cf11a5e8ae4ca378745abe6362d1ea5dcf090

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b23d84d5d5c1c4ce5a8cfa3d0304f26380a2c99066510a4e21c37dd8bcad22a",
    "cross_cats_sorted": [
      "math.KT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2018-04-20T02:09:03Z",
    "title_canon_sha256": "07013a1becd5b15b7c6e323ce7c1ad4eff1de056e2a4f85462c35c36d05cd6fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07424",
    "kind": "arxiv",
    "version": 2
  }
}